Bosch 13056 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Chevrolet, Geo, and Toyota Vehicles

The Bosch Engineered Oxygen Sensor 13056 is designed to provide accurate air-fuel mixture readings for specific vehicle models including Chevrolet Avalon, Geo Prizm, and Toyota Corolla. This narrow-band heated oxygen sensor ensures optimal engine performance and emission control.

• Wiring harness length: 12.8 inches
• Threaded mounting type with 18 mm thread diameter
• 4-wire configuration with blade terminal type
• Rectangle-shaped male connector with 4 terminals
• Heated narrow-band oxygen sensor for precise emissions monitoring
• Overall length of 16.1 inches and steel housing material
• Standard replacement grade for reliable performance
• Compatible with specific fitment for Chevrolet Avalon, Geo Prizm, and Toyota Corolla

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise and durable emission control components tailored to specific vehicle applications. The 13056 oxygen sensor is part of this line, offering a heated narrow-band sensor design that supports accurate air-fuel ratio measurements, helping maintain engine efficiency and compliance with emission standards.

Product Details and Specifications

This Bosch oxygen sensor features a 4-wire heated design with a blade terminal type and a rectangle-shaped male connector, ensuring secure and reliable electrical connections. The sensor’s threaded mounting type with an 18 mm thread diameter allows for straightforward installation. Constructed with a steel housing and metal materials, it offers durability under typical engine conditions. The wiring harness length of 12.8 inches and overall length of 16.1 inches provide sufficient reach for proper placement in the exhaust system.

Common Applications and Issues Addressed

• Helps correct inaccurate air-fuel mixture readings
• Reduces engine misfires and rough idling
• Improves fuel efficiency by optimizing combustion
• Supports emission control compliance for Chevrolet Avalon, Geo Prizm, and Toyota Corolla
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid burns. Use a 22 mm hex socket for sensor removal and installation. Verify the sensor’s connector matches the vehicle’s wiring harness to prevent electrical issues. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications. The Bosch 13056 sensor includes the wiring harness for a complete replacement.

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 13056 is manufactured to meet OEM standards for fit, form, and function. It is a standard replacement grade part designed for durability and reliable performance. Bosch products typically come with a limited warranty; please refer to Bosch or your parts provider for specific warranty details.